Telephone-booth



(No Model.)

E. B. CADWELL.

TELEPHONE BOOTH.

No. 587,700. Patented Aug. 10,1897.

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UNITED STATES PATENT OFFICE.

EUGENE B. CADIVELL, OF JAMESTOVN', NEIV YORK. I

TELEPHONE-BOOTH.

SPECIFICATION forming part of Letters Patent No. 587,700, dated August10, 1897. Appnoonon' not oototor 22,1896. sonal No. 609,693. (No model.)

To all whom, 71ml/ colocar/t:

Be it known that I, EUGENE B. CADWELL, a citizen of the United States,residing at Jamestown, in the county of Chautauqua and State of NewYork, have invented certain new and useful Improvements in Telephone-Booths, of which the following is a specification.

My invention relates to the class of knockdown telephone-booths havingdouble walls and an intermediate air-space; and the object of theinvention is in part to vproduce a booth from which articulate sound ofthe voice will not escape, in part to improve the mechanicalconstruction of the booth, and in part to provide means fortheventilation of the booth.

The accompanying drawings illustrate an embodiment of the invention.

Figure I is a plan of the booth with the top or cover partly broken awayto illustrate the ventilating device. Fig. 2 is a horizontal section inthe plane indicated by line x2 in Fig. 4. Fig. 3 vis a perspective viewof the booth. Fig. 4 is a vertical section in the plane indicated by theline :r4 in Fig. 2. Fig. 5 is a sectional view of the top ofthe booth ona somewhat larger scale than the principal views, the plane in which thesection is taken being indicated by line in Fig. l. Fig..6 is anenlarged detail sectional view illustratingthe .distancing-blocksbetween the outer and inner walls of the sides of the booth and of thedoor.

I represents the recessed bottom or base of the booth, 2 the top orroof, which is also recessed or flanged, and 3 3n the double sides ot'the booth, of which there are four, one side having in it the door 4.Each side consists of an outer wall 3 and an inner wall 3, separated ordistanced from each other by the means clearly shown in Fig. 6; Thisconsists of avblock of wood 5 and two sheets 6 of rubber or likesound-deadening material between the block and the respective walls ofthe side. This block will vbe by preference secured in the manner shownin Fig. 6-that is, byscrews 7 driven through each wall into the block,but notl extending across from one wall to the other. The properpositions of the distancing-blocks are clearly shown in Figs. 2 and 4.The manner of securing the sides together at the corners of the booth isclearly illustrated in Fig. 2. A tongue 8 on one inner wall enters agroove on the other inner wall, and the edge of one outer wall enters again cut in the other outer wall, where it is secured by screws or bolts9.

The inner and outer walls of the door4 are distanced by blocks in thesame manner as 6o shown in Fig. 6. i

The outer walls 3 of the sides extend above the inner walls 3fl thereof,as clearly shown in Figs. 4 and 5, and the top or roof 2 rests on these,there being a ceiling l0, which rests on the lower inner walls. In thisceiling at one side are formed Ventilating holes or apertures 11,whereat air rising from the booth may How into a space I2 between theroof or cover 2 and the ceiling l0. This space l2 is 7c divided by meansof a wooden partition cleat orcleats I3, so'as to form an elongatedpassage terminating at the side or corner opposite to that where theholes Il are situated, and at this point the air escapes at holes 14 inthe roof 2. 75 The circuitous passage formed by the partition orpartitions I3 serves te prevent the escape of articulate sounds from thebooth. vWhen the door of the' booth is opened, fresh air will be drawnin through the holes 14, and 8o when the door is closed air is forcedout thereat. The effect of opening and closing the door Y is thus madeto renewthe air in the booth. Normally the warm vitiated air in thebooth will rise and pass out at the holes Il and 14.

In setting up the booth the sides are placed in the grooves or recessesin the base l and iitted and secured together as described, after whichthe ceiling l0 and roof 2 are placed. The said root' and ceiling may, ifdesired, be 9o secured together in the same manner as the inner andouter walls of the sides, the cleats I3 serving as distancing-blocks,and these cleats should have strips of sound-deadening material I5interposed between them and the 95 respective roof and ceiling.

I am aware that it is not new to make a telephone-booth with double andtriple walls and that it isnot new to vlill the spaces between thesewalls with loose fibrous material. This roc I do not claim.

HavingA thus described my invention, I claim I. Atelephone-booth havingsides with double walls distanced by-wooden blocks 5 and interposedsound-deadening material 6, between the blocks and the walls,substantially as and for the purpose set forth.

2. Atelephone-booth having sides with double walls distanced by woodenblocks 5 and interposed sound-deadening .material 6, between the blocksand the walls, the respective inner and outer walls of the side beingsecured independently to the said blocks, the screws or other securing.means extending into but not through the blocks, substantially as andfor the purposes set forth. 3. A telephone-booth having sides formedeach of an outer wall 3 and an inner wall 3, with an air-space anddistancing-blocks between thein, the inner walls 3n having intel'-locking tongues and grooves at their meeting edges, and one of the outerwalls 3l having a gain to receive the edge of the other, and means forsecuring one side to the other, substantially as set forth.

4. A telephone-booth having an air-space in its cover divided by apartition or partitions so as to form an elongated air-passage, saidair-passage being open at one end to the interior of the booth and atthe other end to the atmosphere, and said partitions having rubberinterposed between their upper and lower edges and the respectiveceiling and roof-plate, substantially as and for the purpose set forth.

5. A knockdown telephone-booth comprising a recessed base, four sides,and a cover or top 2, said top being recessed to receive the sides andcomposed of a roof-plate with an air-aperture 14, a ceiling 10, with anair-aperture 11, the two being separated to leave an air-space 12, apartition, or partitions, 13, partially dividing said space 12 betweenthe apertures 11 and 14, and sound-deadening material 15 between thesaid partition and the respective roof-plate and ceiling, substan-EUGENE B. CADWELL.

Witnesses:

JOHN CADWELL, M. D. STONE.

